K&N parts matching BMW 137178507320 air filter

The BMW 137178507320 air filter cross references with the K&N air filter parts below. K&N offers compatible air filters for many BMW air filters giving you an alternative.
ProductPart NumberProduct Image 
K&N Replacement Air Filter
  • Designed to Increase Power
  • Million Mile Limited Warranty
Terrance, New York
I've been using K&N air filters since back in 1995 for my first car and I've had to order a couple for my car since then. Never let me down and you can tell right away when you put it in. It has a faster pick up and good air flow.
Haroun, Sheffield, London
Very Fast Delivery & Great Item, Can Feel The Difference Instantly.
Paul Sabino , Grenoble, France
Facile à poser et efficace.
33-2990 K&N 33-2990 Replacement Air Filter
List Price: $78.29
Your Price: $49.99